Smith Arena Max Multi Lens Sunglasses. The Smith Arena Max Multi Lens Sunglasses provide a larger lens profile and enhanced fit for the ultimate in coverage and protection on the bike. These sunglasses are loaded with features that make Smith a leader in performance eyewear, such as their revolutionary PivLock interchangeable lens technology. Swapping out lenses has never been easier as you simply rotate the temple 45 degrees to remove the lens. Not only that, the PivLock design ensures an unobstructed field of view an important feature when you're speeding along on your bike. The pair of lenses have you covered for a wide array of light conditions while the adjustable nose pad plus slide on temple tips ensure a perfect fit.